<template>
  <view>
    <!-- 轮播区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item,i) in detailList.pics" :key="i">
        <image :src="item.pics_big" mode="" @click="previewImg(i)"></image>
      </swiper-item>
    </swiper>
    <!-- 内容区域 -->
    <!-- v-if 解决页面数据闪烁的问题 -->
    <view class="goods-info-box" v-if="detailList.goods_name">
      <view class="price">
        ￥{{detailList.goods_price}}
      </view>
      <view class="goods-info-body">
        <view class="goods-name">
          {{detailList.goods_name}}
        </view>
        <view class="favi">
          <uni-icons type="star"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <view class="yf">
        快递：免运费
      </view>
      <!-- 商品详情信息 -->
      <rich-text :nodes="detailList.goods_introduce"></rich-text>
    </view>
    <view class="goods-detail-container ">
      <uni-goods-nav class="goods_nav" :fill="true" :options="options" :buttonGroup="buttonGroup" @click="onClick"
        @buttonClick="buttonClick" />
    </view>
  </view>
</template>

<script>
  import {
    mapMutations,
    mapGetters
  } from "vuex"
  export default {
    computed: {
      ...mapGetters('m_cart', ['total'])
    },
    data() {
      return {
        detailList: [],
        goods_id: 0,
        // 底部按钮数据
        options: [{
          icon: 'shop',
          text: '店铺',
          infoBackgroundColor: '#007aff',
          infoColor: "red"
        }, {
          icon: 'cart',
          text: '购物车',
          info: 0
        }],
        buttonGroup: [{
            text: '加入购物车',
            backgroundColor: '#ff0000',
            color: '#fff'
          },
          {
            text: '立即购买',
            backgroundColor: '#ffa200',
            color: '#fff'
          }
        ]
      };
    },
    onLoad(options) {
      console.log(options)
      this.goods_id = options.goods_id
      this.getGoodsDetailList()
    },
    methods: {
      async getGoodsDetailList () {
        const {
          data: res
        } = await uni.$http.get('/goods/detail', {
          goods_id: this.goods_id
        })
        if (res.meta.status !== 200) return uni.$showMsg()
        res.message.goods_introduce = res.message.goods_introduce.replace(/<img/g, '<img style="display:block;"').replace(
          /webp/g, 'jpg')
        this.detailList = res.message
        console.log(res)
      },
      // 图片预览
      previewImg(i) {
        uni.previewImage({
          current: i,
          urls: this.detailList.pics.map(x => x.pics_big)
        })
      },
      // 底部按钮
      onClick(e) {
        console.log(e)
        if (e.content.text === '购物车') {
          wx.switchTab({
            url: '/pages/cart/cart'
          })
        }
      },
      ...mapMutations('m_cart', ['addToCart']),
      buttonClick(e) {
        if (e.content.text === "加入购物车") {
          const goods = {
            goods_id: this.detailList.goods_id,
            goods_name: this.detailList.goods_name,
            goods_price: this.detailList.goods_price,
            goods_count: 1,
            goods_small_logo: this.detailList.goods_small_logo,
            goods_state: true
          }
          this.addToCart(goods)
        }
        console.log(e)
      }
    },
    watch: {
      total: {
        handler(newNum) {
          const findResult = this.options.find(x => x.text === "购物车")
          if (findResult) {
            findResult.info = newNum
          }
        },
        immediate: true
      }
    }
  }
</script>

<style lang="scss">
  swiper {
    height: 750rpx;

    image {
      width: 100%;
      height: 100%;
    }
  }

  // 商品信息区域的样式
  .goods-info-box {
    padding: 10px;
    padding-right: 0;

    .price {
      color: #c00000;
      font-size: 18px;
      margin: 10px 0;
    }

    .goods-info-body {
      display: flex;
      justify-content: space-between;

      .goods-name {
        font-size: 13px;
        padding-right: 10px;
      }

      // 收藏区域
      .favi {
        width: 120px;
        font-size: 12px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        border-left: 1px solid #efefef;
        color: gray;
      }
    }

    // 运费
    .yf {
      margin: 10px 0;
      font-size: 12px;
      color: gray;
    }
  }

  // 底部按钮
  .goods-detail-container {
    // 给页面外层的容器，添加 50px 的内padding，
    // 防止页面内容被底部的商品导航组件遮盖
    padding-bottom: 50px;
  }

  .goods_nav {
    // 为商品导航组件添加固定定位
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
  }
</style>
